Um espelho que reflecte a vida, que passa por nós num segundo (espelho)

04
Mar 11

 

Potentially Hazardous Asteroids are space rocks larger than approximately 100m that can come closer to Earth than 0.05 AU. None of the known PHAs is on a collision course with our planet, although astronomers are finding new ones all the time.

On March 4, 2011 there were 1203 potentially hazardous asteroids.

 

Recent & Upcoming Earth-asteroid encounters:

 

Asteroid

Date(UT)

Miss Distance

Mag.

Size

2011 EB

Feb 26

2.4 LD

--

18 m

2011 DQ

Feb 26

9.7 LD

--

26 m

2011 DT9

Feb 27

9 LD

--

39 m

2011 DE5

Mar 1

4.9 LD

--

22 m

2011 DW4

Mar 3

6.9 LD

--

15 m

2011 EC

Mar 6

9.2 LD

--

33 m

2000 PN9

Mar 10

45.5 LD

--

2.6 km

2002 DB4

Apr 15

62.5 LD

--

2.2 km

2008 UC202

Apr 27

8.9 LD

--

10 m

2009 UK20

May 2

8.6 LD

--

23 m

2008 FU6

May 5

75.5 LD

--

1.2 km

2003 YT1

May 5

65.3 LD

--

2.5 km

2002 JC

Jun 1

57.5 LD

--

1.6 km

2009 BD

Jun 2

0.9 LD

--

9 m

2002 JB9

Jun 11

71.5 LD

--

3.2 km

2001 VH75

Jun 12

42.2 LD

--

1.1 km

2004 LO2

Jun 15

9.9 LD

--

48 m

 

 

Notes:

LD means "Lunar Distance." 1 LD = 384,401 km, the distance between Earth and the Moon. 1 LD also equals 0.00256 AU. MAG is the visual magnitude of the asteroid on the date of closest approach.

 

SpaceWeather.com

publicado por Produções Anormais - Albufeira às 19:34

Novembro 2019
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